Hello,
I recently bought the Dell T20 Xeon version which came with a Hynix ECC Low Voltage 4GB module:HMT451U7BFR8A. (I included T1700 and 9020 in the title since all three systems share the same motherboard)
I recently upgraded the memory with a single 8GB 1.5v 1600 Non-ECC Crucial module (CT102464BA160B ). So I have one Crucial module in Slot 1 and one hynix 4gb stock ECC in another. And they are working fine, I ran the memory test without any issues.
I read on the Hynix product page that his particular module supports backward compatibility with 1.5V and hence I'm assuming both the current ram modules are operating at 1.5v instead of 1.35v./
I read somewhere that if a system supports 32GB of Low voltage RAM, it can only support 16GB of 1.5v ram. Is this true?
I'm planning to add another 8GB non ecc 1.5v crucial module to make a total of 20GB.
Will this config work? Are there any special power constraints that the motherboard's on-board power regulators have? Since this motherboard only gets as 12v supply and does rest of the conversions onboard.
As for the power supply, I'm using an aftermarket 550watt unit.